Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Display apparatus and method for driving the same

a display apparatus and display device technology, applied in the field of display devices and a method for driving the same, can solve the problems of increasing the voltage level of the touch signal, the noise defect of the display device, and the noise defect of the touch panel, so as to reduce the ripple noise defect of common voltage and increase the touch recognition rate

Active Publication Date: 2015-08-06
SAMSUNG DISPLAY CO LTD
View PDF10 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent introduces a display screen that can improve touch recognition by reducing a common voltage issue that causes ripple noise. The technical effect of this innovation is to enhance the accuracy of touch input on the display screen.

Problems solved by technology

As the thickness of the display apparatus decreases, a noise defect of the display apparatus may increase.
A ripple noise of a common voltage, which is generated according to a physical characteristic of the display panel and a display pattern, may cause a noise defect of the touch panel.
According to the high voltage driving method, voltage levels of the touch signal may be increased, so that the touch signal may become insensitive to the ripple noise.
The frequency hopping method may not be applied when the ripple noise is generated in the entire frequency range.
The high voltage driving method may have a disadvantage of relatively high power consumption.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Display apparatus and method for driving the same
  • Display apparatus and method for driving the same
  • Display apparatus and method for driving the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024]Embodiments will be described in detail with reference to the accompanying drawings. The inventive concept, however, may be embodied in various different forms, and should not be construed as being limited only to the illustrated embodiments. Rather, these embodiments are provided as examples so that this disclosure will be thorough and complete, and will fully convey the concept of the inventive concept to those skilled in the art. Accordingly, known processes, elements, and techniques are not described with respect to some of the embodiments of the inventive concept. Unless otherwise noted, like reference numerals denote like elements throughout the attached drawings and written description, and thus descriptions will not be repeated. In the drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity.

[0025]It will be understood that, although the terms “first”, “second”, “third”, etc., may be used herein to describe various elements, component...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A display apparatus including a display panel, a touch panel, a data driver, a common voltage noise predictor and a touch position detector. The display panel includes a plurality of data lines and a plurality of pixels. The pixels are electrically connected to the data lines, respectively. The touch panel is configured to output a first touch signal based on a touch event. The data driver is configured to output a data voltage to the data line based on a data signal. The common voltage noise predictor is configured to output a common voltage noise compensating signal based on the data signal. The touch position detector is configured to detect a touch position based on the common voltage noise compensating signal and the first touch signal.

Description

[0001]This application claims priority from and benefit under 35 U.S.C. §119(a) of Korean Patent Application No. 10-2014-0012136, filed on Feb. 3, 2014, which is herein incorporated by reference for all purposes as if fully set forth herein.BACKGROUND[0002]1. Field[0003]Exemplary embodiments of the present inventive concept relate to a display apparatus and a method for driving the display apparatus. More particularly, exemplary embodiments of the present inventive concept relate to a display apparatus with increased touch recognition rates and a method for driving the display apparatus.[0004]2. Discussion of the Background[0005]A display apparatus may include a touch panel which senses a touch event that occurred on a screen, and outputs a touch signal. As the thickness of the display apparatus decreases, a noise defect of the display apparatus may increase.[0006]A ripple noise of a common voltage, which is generated according to a physical characteristic of the display panel and a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F3/044G02F1/1333G06F3/041
CPCG06F3/044G02F1/133308G06F3/0412G06F3/0416G06F3/04184G06F3/0418G02F1/13338G02F1/13452
Inventor PARK, JI-HONGKANG, MOON SHIKCHOI, MOON-SUNGCHOI, SANG-MIN
Owner SAMSUNG DISPLAY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com